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To seek a photocathode with good stability and repeatability in an ultrahigh vacuum system, activation and recesiation experiments are carried out on reflection-mode GaAlAs and GaAs photocathodes grown by metalorganic chemical vapor deposition, and the spectral response curves and photocurrent decay curves are measured after Cs/O activation and recesiation. Experimental results show that the photocurrent decay lifetime for GaAlAs photocathode illuminated by white light with an intensity of 100 lx is longer than that for GaAs photocathode after Cs/O activation and recesiation under ultrahigh vacuum condition. Moreover, GaAlAs photocathode exhibits a coincident blue-green response capability and a photocurrent decay lifetime after multiple recesiations, reflecting the superiority in stability and repeatability for GaAlAs photocathode operating in the vacuum system, and may provide an experimental guidance for exploring marine vacuum detectors and vacuum electron sources.
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Keywords:
- GaAlAs photocathode /
- photocurrent decay /
- recesiation /
- spectral response
[1] Martinelli R U, Fisher D E 1974 Proc. IEEE 62 1339
[2] [3] Zhang Y J, Zou J J, Wang X H, Chang B K, Qian Y S, Zhang J J, Gao P 2011 Chin. Phys. B 20 048501
[4] Cai Z P, Yang W Z, Tang W D, Hou X 2012 Acta Phys. Sin. 61 187901 (in Chinese)[蔡志鹏, 杨文正, 唐伟东, 侯洵 2012 61 187901]
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[14] Zhang S, Benson S V, H-Garcia C 2011 Nucl. Instrum. Methods Phys. Res. A 631 22
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[18] Calabrese R, Ciullo G, Guidi V, Lamanna G, Lenisa P, Maciga B, Tecchio L, Yang B 1994 Rev. Sci. Instrum. 65 343
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[27] [28] Kuriki M, Shonaka C, Iijima H, Kubo D, Okamoto H, Higaki H, Ito K, Yamamoto M, Konomi T, Okumi S, Kuwahara M, Nakanishi T 2011 Nucl. Instrum. Methods Phys. Res. A 637 587
[29] [30] [31] Chanlek N, Herbert J D, Jones R M, Jones L B, Middleman K J, Militsyn B L 2014 J. Phys. D: Appl. Phys. 47 055110
[32] [33] Zhang Y J, Niu J, Zhao J, Zou J J, Chang B K, Shi F, Cheng H C 2010 J. Appl. Phys. 108 093108
[34] Liu Z, Sun Y, Machuca F, Pianetta P, Spicer W E, Pease R F W 2003 J. Vac. Sci. Technol. B 21 1953
[35] [36] [37] Ruan C J 2003 Chin. Phys. 12 483
[38] [39] Fu X Q, Chang B K, Qian Y S, Zhang J J 2012 Chin. Phys.B 21 030601
[40] Aspnes D E, Kelso S M, Logan R A, Bhat R 1986 J. Appl. Phys. 60 754
[41] [42] Zou J J, Chang B K, Yang Z, Gao P, Qiao J L, Zeng Y P 2007 Acta Phys. Sin. 56 6109 (in Chinese)[邹继军, 常本康, 杨智, 高频, 乔建良, 曾一平 2007 56 6109]
[43] -
[1] Martinelli R U, Fisher D E 1974 Proc. IEEE 62 1339
[2] [3] Zhang Y J, Zou J J, Wang X H, Chang B K, Qian Y S, Zhang J J, Gao P 2011 Chin. Phys. B 20 048501
[4] Cai Z P, Yang W Z, Tang W D, Hou X 2012 Acta Phys. Sin. 61 187901 (in Chinese)[蔡志鹏, 杨文正, 唐伟东, 侯洵 2012 61 187901]
[5] [6] Chen X L, Zhao J, Chang B K, Yu X H, Hao G H, Xu Y, Cheng H C 2013 J. Appl. Phys. 113 213105
[7] [8] [9] Chen X L, Zhao J, Chang B K, Xu Y, Zhang Y J, Jin M C, Hao G H 2013 Acta Phys. Sin. 62 037303 (in Chinese)[陈鑫龙, 赵静, 常本康, 徐源, 张益军, 金睦淳, 郝广辉 2013 62 037303]
[10] Martinelli R U, Ettenberg M 1974 J. Appl. Phys. 45 3896
[11] [12] [13] Nishitani T, Tabuchi M, Takeda Y, Suzuki Y, Motoki K, Meguro T 2009 Jpn. J. Appl. Phys. 48 06FF02
[14] Zhang S, Benson S V, H-Garcia C 2011 Nucl. Instrum. Methods Phys. Res. A 631 22
[15] [16] [17] Wada T, Nitta T, Nomura T, Miyao M, Hagino M 1990 Jpn. J. Appl. Phys. 29 2087
[18] Calabrese R, Ciullo G, Guidi V, Lamanna G, Lenisa P, Maciga B, Tecchio L, Yang B 1994 Rev. Sci. Instrum. 65 343
[19] [20] Durek D, Frommberger F, Reichelt T, Westermann M 1999 Appl. Surf. Sci. 143 319
[21] [22] [23] Sinclair C K, Adderley P A, Dunham B M, Hansknecht J C, Hartmann P, Poelker M, Price J S, Rutt P M, Schneider W J, Steigerwald M 2007 Phys. Rev. ST Accel Beams 10 023501
[24] [25] Zou J J, Chang B K, Yang Z, Qiao J L, Zeng Y P 2008 Appl. Phys. Lett. 92 172102
[26] Mulhollan G A, Bierman J C 2010 J. Vac. Sci. Technol. B 28 899
[27] [28] Kuriki M, Shonaka C, Iijima H, Kubo D, Okamoto H, Higaki H, Ito K, Yamamoto M, Konomi T, Okumi S, Kuwahara M, Nakanishi T 2011 Nucl. Instrum. Methods Phys. Res. A 637 587
[29] [30] [31] Chanlek N, Herbert J D, Jones R M, Jones L B, Middleman K J, Militsyn B L 2014 J. Phys. D: Appl. Phys. 47 055110
[32] [33] Zhang Y J, Niu J, Zhao J, Zou J J, Chang B K, Shi F, Cheng H C 2010 J. Appl. Phys. 108 093108
[34] Liu Z, Sun Y, Machuca F, Pianetta P, Spicer W E, Pease R F W 2003 J. Vac. Sci. Technol. B 21 1953
[35] [36] [37] Ruan C J 2003 Chin. Phys. 12 483
[38] [39] Fu X Q, Chang B K, Qian Y S, Zhang J J 2012 Chin. Phys.B 21 030601
[40] Aspnes D E, Kelso S M, Logan R A, Bhat R 1986 J. Appl. Phys. 60 754
[41] [42] Zou J J, Chang B K, Yang Z, Gao P, Qiao J L, Zeng Y P 2007 Acta Phys. Sin. 56 6109 (in Chinese)[邹继军, 常本康, 杨智, 高频, 乔建良, 曾一平 2007 56 6109]
[43]
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