Position, Energy, and Transit Time Distributions in a Hemispherical Deflector Analyzer with Position Sensitive Detector

Table 2

Comparison of the electron optical properties for fringing and ideal field cases for each of the three entries computed by SIMION. For all cases,  mm and  keV. Also given in parentheses are the results obtained using the closed form equations (see text). All results are nonrelativistic.

		Positive bias; Paracentric HDA		Conventional HDA		Negative bias; Paracentric HDA
	(mm)	82.55		101.6		116.0
		1.4715		1.00		0.499
	(V)	471.5		0.000		−501.0
		Ideal	Fringing	Ideal	Fringing	Ideal	Fringing
		−1.000; (−1.000)	−0.882	−1.000; (−1.000)	−1.018	−1.000; (−1.000)	−1.500
	(mm)	154.026; (154.024)	159.559	203.205; (203.200)	206.686	381.957; (381.939)	320.596
	(mm/rad)	0.011; (0.000)	0.030	0.009; (0.000)	106.07	0.007; (0.000)	0.033
	(mm/rad^2)	225.96; (226.65)	216.71	202.68; (203.20)	−5.4729	190.14; (190.59)	130.01
	(ns/rad)	39.848; (39.848)	38.355	43.338; (43.337)	43.927	57.542; (57.541)	45.546
	(ns/rad^2)	−39.4739; (−39.34)	−30.260	−36.0783; (−36.11)	−38.169	−42.8798; (−43.19)	−38.532